Question

What is the inverse of the linear equation y=2x+4?

Answer 1

The inverse is an equation that shows 'x' in terms of 'y'.
The new equation will say
x = something .

We just have to take the given equation and solve it for 'x'.

y = 2x + 4
Subtract 4
from each side: y - 4 = 2x

Divide each side by 2 : (y-4)/2 = x

Answer 2

To find the inverse of an equation simply switch the X and y coordinates and solve for the new Y coordinate.

Y = 2x + 4
X = 2y + 4
X - 4 = 2y
X-4/2 = 2y/2

Y = X - 4/2.